\documentclass[12pt]{article}
\input{source/preamble}
\usepackage[pdftex,
            pdfauthor={Nombre del Autor},
            pdftitle={Título del Documento},
            pdfsubject={Temática o Campo del Conocimiento},
            pdfkeywords={Palabras Clave},
            pdfproducer={Latex},
            pdfcreator={pdflatex},
            hidelinks]{hyperref}
\begin{document}
\input{source/frontmatter/cover}
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\frontmatter
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\input{source/frontmatter/table_of_contents}
\input{source/frontmatter/resumen_keywords}
%------------------------------------------------------------------------------------------------------------------------------
\mainmatter
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\input{source/mainmatter/introduccion}
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\input{source/mainmatter/justificacion}
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\input{source/mainmatter/problema_de_investigacion}
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\input{source/mainmatter/objetivos}
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\input{source/mainmatter/marco_de_referencia}
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\input{source/mainmatter/impacto_y_resultados}
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\input{source/mainmatter/limitaciones}
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% \input{source/mainmatter/hipotesis}
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\input{source/mainmatter/metodologia}
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\input{source/mainmatter/recursos_y_presupuesto}
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\input{source/mainmatter/cronograma}
%------------------------------------------------------------------------------------------------------------------------------
\backmatter
%------------------------------------------------------------------------------------------------------------------------------
\input{source/backmatter/apendice_a}
%------------------------------------------------------------------------------------------------------------------------------
\input{source/backmatter/referencias}
%------------------------------------------------------------------------------------------------------------------------------
\end{document}